```html
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    <title>Java BufferedReader 类详解 | 技术小馆</title>
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</head>
<body>
    <!-- Hero Section -->
    <section class="hero text-white py-20 px-4 md:px-0">
        <div class="container mx-auto max-w-5xl">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-10 md:mb-0">
                    <h1 class="text-4xl md:text-5xl font-bold mb-6">深入理解 Java BufferedReader</h1>
                    <p class="text-xl mb-8 opacity-90">高效读取流数据的强大工具</p>
                    <div class="bg-white bg-opacity-20 p-4 rounded-lg inline-block">
                        <p class="text-lg">"BufferedReader 提供了缓冲功能，可以显著提高I/O操作效率"</p>
                    </div>
                </div>
                <div class="md:w-1/2 flex justify-center">
                    <div class="w-64 h-64 rounded-full bg-white bg-opacity-20 flex items-center justify-center">
                        <i class="fas fa-stream text-7xl opacity-80"></i>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Main Content -->
    <main class="container mx-auto max-w-5xl py-12 px-4">
        <!-- Introduction -->
        <section class="mb-16">
            <h2 class="text-3xl font-bold mb-6 text-gray-800 border-b pb-2">BufferedReader 概述</h2>
            <p class="text-lg mb-6">BufferedReader 是 Java 中一个重要的 I/O 类，它从字符输入流中读取文本，缓冲各个字符，从而实现高效读取。</p>
            
            <div class="grid md:grid-cols-2 gap-8 mb-8">
                <div class="bg-gray-50 p-6 rounded-lg shadow-sm">
                    <i class="fas fa-tachometer-alt concept-icon"></i>
                    <h3 class="text-xl font-bold mb-3">高效读取</h3>
                    <p>通过缓冲机制减少实际I/O操作次数，提高读取效率。当缓冲区为空时，会一次性从底层流中读取大量数据到缓冲区。</p>
                </div>
                <div class="bg-gray-50 p-6 rounded-lg shadow-sm">
                    <i class="fas fa-keyboard concept-icon"></i>
                    <h3 class="text-xl font-bold mb-3">键盘输入</h3>
                    <p>常与System.in结合使用，通过InputStreamReader转换字节流为字符流，实现对键盘输入的高效读取。</p>
                </div>
            </div>
        </section>

        <!-- Code Example -->
        <section class="mb-16">
            <h2 class="text-3xl font-bold mb-6 text-gray-800 border-b pb-2">键盘输入示例</h2>
            <p class="text-lg mb-6">下面是一个标准的键盘输入处理示例，演示了如何使用BufferedReader读取用户输入：</p>
            
            <div class="code-block shadow-lg">
                <div class="code-header flex items-center">
                    <div class="w-3 h-3 rounded-full bg-red-500 mr-2"></div>
                    <div class="w-3 h-3 rounded-full bg-yellow-500 mr-2"></div>
                    <div class="w-3 h-3 rounded-full bg-green-500 mr-2"></div>
                    <span class="ml-2">Test01.java</span>
                </div>
                <div class="code-body">
                    <pre><code><span class="keyword">public</span> <span class="keyword">class</span> <span class="type">Tese01</span> {
    <span class="keyword">public</span> <span class="keyword">static</span> <span class="type">void</span> <span class="keyword">main</span>(<span class="type">String</span>[] args) <span class="keyword">throws</span> <span class="type">Exception</span> {
          
        <span class="keyword">while</span>(<span class="keyword">true</span> ){
            <span class="type">BufferedReader</span> buf = <span class="keyword">new</span> <span class="type">BufferedReader</span>( <span class="keyword">new</span> <span class="type">InputStreamReader</span>(<span class="type">System</span>.in ));
            <span class="type">String</span> read = buf.readLine();
            <span class="type">System</span>.out.println(read);
            <span class="keyword">if</span> ( <span class="string">"exit"</span>.equals(read)) {
                <span class="keyword">break</span>;
            }
        }
    }
}</code></pre>
                </div>
            </div>
        </section>

        <!-- Explanation -->
        <section class="mb-16">
            <h2 class="text-3xl font-bold mb-6 text-gray-800 border-b pb-2">代码解析</h2>
            
            <div class="grid md:grid-cols-2 gap-8">
                <div>
                    <h3 class="text-xl font-bold mb-4 flex items-center">
                        <i class="fas fa-info-circle text-blue-500 mr-2"></i>
                        工作流程
                    </h3>
                    <ol class="list-decimal pl-5 space-y-2">
                        <li>创建 BufferedReader 实例，包装 InputStreamReader(System.in)</li>
                        <li>在循环中不断调用 readLine() 方法读取输入</li>
                        <li>将读取的内容输出到控制台</li>
                        <li>检查输入是否为 "exit"，如果是则退出循环</li>
                    </ol>
                </div>
                <div>
                    <h3 class="text-xl font-bold mb-4 flex items-center">
                        <i class="fas fa-lightbulb text-yellow-500 mr-2"></i>
                        关键点
                    </h3>
                    <ul class="list-disc pl-5 space-y-2">
                        <li>System.in 是字节流，需要转换为字符流</li>
                        <li>BufferedReader 提供 readLine() 方法方便逐行读取</li>
                        <li>需要处理可能的 IOException</li>
                        <li>"exit".equals(read) 可以避免空指针异常</li>
                    </ul>
                </div>
            </div>
        </section>

        <!-- Mermaid Diagram -->
        <section class="mb-16">
            <h2 class="text-3xl font-bold mb-6 text-gray-800 border-b pb-2">数据流示意图</h2>
            <div class="bg-gray-50 p-6 rounded-lg shadow-sm">
                <div class="mermaid">
                    graph LR
                    A[键盘输入] -->|字节流| B(System.in)
                    B -->|InputStream| C[InputStreamReader]
                    C -->|字符流| D[BufferedReader]
                    D -->|String| E[处理逻辑]
                </div>
            </div>
        </section>

        <!-- Best Practices -->
        <section class="mb-16">
            <h2 class="text-3xl font-bold mb-6 text-gray-800 border-b pb-2">最佳实践</h2>
            
            <div class="grid md:grid-cols-3 gap-6">
                <div class="bg-white p-6 rounded-lg shadow-sm border border-gray-100 card-hover transition-all duration-300">
                    <i class="fas fa-recycle text-blue-500 text-2xl mb-4"></i>
                    <h3 class="text-xl font-bold mb-3">资源管理</h3>
                    <p>使用 try-with-resources 自动关闭资源，避免内存泄漏</p>
                </div>
                <div class="bg-white p-6 rounded-lg shadow-sm border border-gray-100 card-hover transition-all duration-300">
                    <i class="fas fa-shield-alt text-green-500 text-2xl mb-4"></i>
                    <h3 class="text-xl font-bold mb-3">异常处理</h3>
                    <p>正确处理 IOException，避免程序意外终止</p>
                </div>
                <div class="bg-white p-6 rounded-lg shadow-sm border border-gray-100 card-hover transition-all duration-300">
                    <i class="fas fa-bolt text-purple-500 text-2xl mb-4"></i>
                    <h3 class="text-xl font-bold mb-3">性能优化</h3>
                    <p>对于大文件，设置适当的缓冲区大小可以提高性能</p>
                </div>
            </div>
        </section>
    </main>

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```